* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    vertical-align: baseline;
  }

  a {
    text-decoration: none;
    color: #666;
  }
  
  html,
  body {
    width: 100%;
    height: 100%;
  }
  
  table,
  thead,
  tbody,
  tr,
  th,
  td {
    border-collapse: collapse;
    border-spacing: 0;
  }
  ul,
  ol,
  li {
    list-style: none;
  }
  #app {
    width: 100%;
    height: 100%;
    background: #fff;
  }